There's a bit of a dilemma here:Previously, QCAD used to snap to the one reference point of a block reference when snapping ro reference points.A bug was filed since users expected it to snap to reference points inside the block reference instead (e.g. the reference points of a circle that is part of the block).So the behavior was changed.Now it was changed again: future QCAD versions will snap to both internal reference points and the reference point of the block.